Why not add a part for a bomb bay?
Something simple that looks like the "Hollow Fuselage" but it has an option to "add door." This door can be dragged to make it bigger or smaller (like what you can do with the wings), and then you have options like speed, angle, et cetera. And you can link the bomb bay to an AG control. This way it functions better, and is easier to use. And it would just look better (though there are some nice looking custom bomb bays).
(btw this is the SimplePlanes user @LieutenantSOT if you were wondering)